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When to use Precession of the Equinoxes 3D Explorer
Use the Precession of the Equinoxes 3D Explorer when you need a quick browser view of axial precession and north-star migration - and skip it when you need an ephemeris or catalog.
- Classroom demos of why Polaris will not always be the north star
- Linking ~25,772 yr period and ~1 deg per ~72 yr to the pole-path ring
- One-screen refresher before seasons-earth or ecliptic-zodiac siblings
This page does not provide an ephemeris, does not place precise catalog star positions, and uses teaching markers for Polaris and Vega.
Walk the controls in the step-by-step guide, or compare options in vs alternatives. Open the Precession of the Equinoxes 3D Explorer.
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